Results 201 to 210 of about 48,267 (244)

Aerobic Mesophilic Bacteria in Composts

Nature, 1948
IN a previous communication1, an account was given of the activity of the thermophilic flora which develops in composts made from grass cuttings (lawn mowings). This thermophilic flora can be seen as a white coating on the cuttings, particularly in the upper layers during the high-temperature phase.
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Mesophilic Digestion Kinetics of Manure Slurry

Applied Biochemistry and Biotechnology, 2007
Anaerobic digestion kinetics study of cow manure was performed at 35 degrees C in bench-scale gas-lift digesters (3.78 l working volume) at eight different volatile solids (VS) loading rates in the range of 1.11-5.87 g l-1 day-1. The digesters produced methane at the rates of 0.44-1.18 l l-1 day-1, and the methane content of the biogas was found to ...
Khursheed, Karim, K Thomas, Klasson, Sadie R, Drescher, Whitney, Ridenour, Abhijeet P, Borole, Muthanna H, Al-Dahhan   +5 more
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Stepwise Conversion of a Mesophilic to a Thermophilic Ribozyme

Journal of Molecular Biology, 2003
A fundamental question in RNA folding is the mechanism of thermodynamic stability. We investigated the equilibrium folding of a series of sequence variants in which one to three motifs of a 255-nucleotide mesophilic ribozyme were substituted with the corresponding motifs from its thermophilic homologue. Substitution of three crucial motifs individually
X-W, Fang, N, Srividya, B L, Golden, T R, Sosnick, T, Pan   +4 more
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Growth of Mesophilic Methanotrophs at Low Temperatures

Microbiology, 2001
The optimal growth of mesophilic methanotrophic bacteria (collection strains of the genera Methylocystis, Methylomonas, Methylosinus, and Methylobacter) occurred within temperature ranges of 31-34 degrees C and 23-25 degrees C. None of the strains studied were able to grow at 1.5 or 4 degrees C.
M V, Kevbrina, A A, Okhapkina, D S, Akhlynin, I K, Kravchenko, A N, Nozhevnikova, V F, Gal'chenko   +5 more
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The specific activities of mesophilic and thermophilic proteinases

International Journal of Biochemistry, 1987
1. Most enzymes from extreme thermophiles do not possess higher specific activities than similar enzymes from mesophiles (measured at their respective growth temperatures). 2. However, using protein substrates, the specific activities of thermophilic proteinases are considerably higher than those of most microbial and eukaryotic proteinases. 3.
D A, Cowan, R M, Daniel, H W, Morgan
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Bioflocculation of mesophilic and thermophilic activated sludge

Water Research, 2005
Thermophilic activated sludge treatment is often hampered by a turbid effluent. Reasons for this phenomenon are so far unknown. Here, the hypothesis of the temperature dependency of the hydrophobic interaction as a possible cause for diminished thermophilic activated sludge bioflocculation was tested.
Vogelaar, J.C.T., de Keizer, A., Spijker, S., Lettinga, G.   +3 more
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Discrimination and Classification of Thermophilic and Mesophilic Proteins

4th International Symposium on Voronoi Diagrams in Science and Engineering (ISVD 2007), 2007
There has been considerable interest in the physical basis for the increased thermostability of thermophilic proteins with respect to their mesophilic counterparts since the discovery of highly heat tolerant organisms. We have systematically studied several large sets of protein structures in order to find those properties with the most power to ...
Todd J. Taylor, Iosif I. Vaisman
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Molecular dynamics study of a hyperthermophilic and a mesophilic rubredoxin

Proteins: Structure, Function, and Bioinformatics, 2002
AbstractIn recent years, increased interest in the origin of protein thermal stability has gained attention both for its possible role in understanding the forces governing the folding of a protein and for the design of new highly stable engineered biocatalysts. To study the origin of thermostability, we have performed molecular dynamics simulations of
GROTTESI A., CERUSO M. A., COLOSIMO, Alfredo, DI NOLA, Alfredo   +3 more
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The use of mesophilic cultures in the dairy industry

Antonie van Leeuwenhoek, 1983
The use of mesophilic starter cultures, containing group N Streptococcus and Leuconostoc species, in the dairy industry is examined. Bacteriophage attack is identified as the main cause of culture inhibition and criteria used to select stable mixed-strain starter cultures and phage-insensitive defined strains are established. The key aspects of culture
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Cellulases of Mesophilic Microorganisms

Annals of the New York Academy of Sciences, 2008
The cellulolytic activity of mesophilic bacteria and fungi is described, with special emphasis on the large extracellular enzyme complex called the cellulosome. The cellulosome is composed of a scaffolding protein, which is attached to various cellulolytic and hemicellulolytic enzymes, and this complex allows the organisms to degrade plant cell walls ...
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